Plural of denominator: the bottom number in a fraction that shows how many equal parts the whole is divided into; things that denominate or classify.
From Latin 'denominare' (to name after) + '-tor' suffix (one who does). In mathematics, the denominator 'names' the size of the parts.
The denominator literally 'names' what size pieces you're dealing with—in the fraction 3/4, the 4 names the pieces as quarters! It's why we call it a denominator, not just 'the bottom number'!
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